Loved the first 3/4 of the book. Amazing sci-fi. The last 1/4 of the book dropped it one star because it became boring and I didn't really care how it ended. Also, NO SEX. At all. Zip, zero, nada. It felt, to me, like Jac and Patrick could've been brothers for all the chemistry I got between them. Jac and Rob had more chemistry. Gah!